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Finding the Fourth Proportional to 377.41, 566.20 and 120.91

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Solution

The fourth proportional to 377.41, 566.20 and 120.91 is: 181.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.41 : 566.20 = 120.91 : x
  2. Step 2: Convert to fraction form
    377.41/566.20 = 120.91/x
  3. Step 3: Cross multiply
    377.41x = 566.20 × 120.91
  4. Step 4: Simplify right side
    377.41x = 68,459.24
  5. Step 5: Solve for x
    x = 68,459.24/377.41
  6. Step 6: Final answer
    x = 181.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.